Cultivator.



S. R. ANDERSON,

CULTIVATOR.

APPLICATION FILED OCT-11.1918.

1,295,253. Patented Feb. 25, 1919.

2 SHEETS-SHEET I.

S. R. ANDERSON.

CULTIVATOR. APPLICATION FILED OCT. 1], 19184 Patented Feb ma Noam: r-nms SAMUEL RICHARD ANDERSON, OF HABDIN, ILLINOIS, ASSIGNOR OF ONE-THIRD TO FRED A. LONG, OF HARDIN, ILLINOIS.

CULTIVATOR.

Specification of Letters Patent.

Patented Feb. 25, 1919.

Application filed October 17, 1918. Serial No. 258,605.

To all whom it may concern:

Be it known that I, SAMUEL RICHARD ANDERSON, citizen of the United States, residing at Hardin, in the county of Calhoun and State of Illinois, have invented certain new and useful Improvements in Cultivators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to cultivators, and it relates more particularly to an improved shank adjusting and tensioning mechanism.

One of the objects of this invention is to provide a cultivator mechanism which is capable of various adjustments according to the attending circumstances or requirements;

Another object is to provide an improved mechanism whereby a cultivator shank is normally secured against accidental rotary movement, but is instantaneously releasable when desired to rotate the shank,

Another object is to provide a mechanism of this character with a normal positioning spring, and means whereby the spring may be quickly tensioned to'the desired degree;

Another object is to form a shank or lon gitudinally slotted and grooved element easily and economically by combining different sized tubes which are obtained from ready-made stock;

Another object is, to provide a device of this character which consists of few and simple parts, easily assembled, so that the device may be made at a comparatively low' cost A further object is to provide a mochanism of this character which is thoroughly practicable, convenient, strong and durable.

Other objects and advantages may become apparent to persons who read the following details of description in connection with the accompanying drawings, in which:

Figure l is a side elevation of my improved cultivator mechanism;

Fig. 2 is a top plan view of the same; Fig. 3 is a sectional view, the section being taken along the line 33 of Fig. 1; Fig. 4 is a vertical sectional view; Fig. 5 is a-view partly in section, the

section being taken along the line 5-5 of F i l, and

ig. 6 is a sectional view along the line 66 of Fig. 1.

Referring to these drawings in detail, in which similar reference characters correspond with similar parts throughout the several views; the numeral 7 designates a support or element of the cultivator frame which has an apertured supporting element or secondary support 8 pivotally secured thereto at 9. The support is held in its normal position by means of gravity assisted by a spring 10 which is secured for adjustment on the beam or support .7 by means ofa yoke 11, an apertured bar 12 through which screw-threaded ends of the yoke 11 extend, and nuts 13 on said screw-threaded ends. The spring 10 operates (in a manner hereinafter described) to hold the supports 7 and 8 in contact with one another at the point 14:, so that the support 8 may move on its pivot 9, with relation to the support 7, in opposition to gravity and the spring 10. The support 8 may be either formed integrally or composed of the two elements 15 and 16 secured together by means of the bolts 17, but in either event, the support 8 is a unitary structure and has an aperture 18 through which a shank 19 extends. This shank supports a cultivator plate or shovel 20, any appropriate means being provided for securing the shovel to the shank. Although I may form the shank 19 integrally, it is disclosed in the present embodiment as composed of an inner tube 21 and an outer tube 22, rivets 23 extending through these tubes and securing them in fixed relation to one another.

However, in case of injury to either of said tubes, it may be replaced in its relation to the other of said tubes without renewing the latter. The inner tube is provided with diametrically opposed longitudinal slots 24, and one of these slots registers with a slot 25 in the outer tube. However, the diametrically opposed part of the outer tube is imperforate and close-s the outer opening of the adjacent slot 24: so that the latter constitutes a groove in the wall of the shank 19.

A lever 26 has a handle 27 at one end 55 and support 8 about the pivot 9, and when and has its other end portion extending through the registering slots 24 and 25 and into the groove opposite to theseslots. The inner end of the lever 26 is snugly fitted between the walls of the slots and groove so as to prevent any rotary movement of the shanks with relation to the lever, but allowing longitudinal movement of the lever along the slots and groove. The lever 26' is provided with a band or collar having parallel apertured extensions 29 through which bolts 30 extend, these bolts cooperating with nuts 31 for securing the band 28 on the lever. This band secures the lever against movement out of the slots and groove, but the shank 19 may be moved through the band 28 and aperture 18 with relation to the lever 26 and support 8, the lever 26 being held against movement away from the support 8 by means of a toothed segment 32 which is secured to the rear edge of the relatively fiat and broad rearward extension of the part 16. The spring-bar or detaining element 33 is secured to the lever 26 by means of bolts 34:, and this detent 33 is engageable alternately with the teeth of the segment 32 so as to secure the lever 26 and the shank 19 in diiferent rotary adjustments. V

The shank 19 is provided with collars 35 and 36 which are adjustable longitudinally of the shank '19, set-screws 37 belng.

provided for securing these collars in different adjustments. The collar 35 is pro- Vided with a flange 38 which is engaged by a pair of keepers 39 which are secured by bolts 40 on the plate or member 16. As the band 28 is seatedon the top surface of the member 16, it cooperates with the latter and with the keepers 39 and the collar 35 for preventing movement of the shank 19 when the lower set-screw 37 is set so as to hold the collar 35 in the position shown in the drawing; but, upon loosening the set-screw 37, the shank 19 may be moved up or down through the aperture 18.

The tension of the spring 10 may be regulated by movement of the collar 36 up or down along the shank 19, and additional adjustment or tensioning of the spring 10 may be effected by movement of elements 11, 12 and 13 along the support 7.

In the event that the shovel 20 strikes a rock or other obstruction, the spring 10 is overcome by movement of the shank 19 such obstruction has been disengaged with the shovel 20, the spring 10 returns the support 8 and the elements carried thereby to their normal position.

When it is desired to deflect the shovel rightward or leftward, the detent 33 is pressed out of engagement with the segment 32, and handle 27 is moved rightward or leftward, and the spring 33 is then allowed to engage with other teeth of the' ments will normally be higher with relation to the elements 15 and 16.

While I have described this embodiment of my invention very specifically, it is to be understood that this invention is not limited to these exact details of construction and arrangement of parts, but I am entitled to make minor changes without departing from the inventive idea disclosed in the foregoing description' and following claims.

What I claim as my invention is:

1. In a cultivator, anapertured support, a longitudinally slotted shank extending through an aperture of said support and movable longitudinally therethrough, a lever having one end portion in the slot of said slotted shank and being operable to rotate the latter, and means for retaining said end insaid slot while allowing relative movement of the lever and shank longitudinally of the latter.

2. In a cultivator, an apertured support, a longitudinally slotted shank extending through an aperture of said support and movable longitudinally therethrough, a lever having one end portion in the slot of said slotted shank and being operable to rotate the latter, means for retaining said end in said slot while allowing relative movement of the lever and shank longitudinally of the latter, and means for securing said shank in different longitudinal adjustments.

3. In a cultivator, an apertured support, a longitudinally slotted shank extending through an aperture of said support and movable longitudinally. therethrough, a lever having one end portion in the slot of said slotted shank and being operable to rotate the latter, means for retaining said end in said slot while allowing relative movement of the lever and shank longitudinally of the latter, means for securing said shank in different longitudinal adjustments, and means cooperative with said lever for securing said shank in different rotary adjustments. V

4:. In combination, an apertured support, a tubular element mounted for longitudinal and rotary movements relative to said support in an aperture of the latter, said tubular element having a longitudinal slot through one side and also having a groove diametrically opposed to said slot, alever having one end portion extending through said slot and into said groove, and means cooperative with said lever for holding said tubular element in difierent rotary adjustments and for holding said lever against movement relative to said support during the drawings disclose the tube the longitudinal movements of said tubular element.

5. In combination, an outer tube formed with a longitudinal slot through only one side, an inner tube formed with diametrically opposed slots and secured in the said outer tube and having one of its slots registering with the slot of said outer tube, a support having an aperture in which said tubes are mounted to rotate and move longitudinally as a unitary element, and a lever having one end portion extending through said slots and being operable to effect rotary movement of said unitary element but eiiectually preventing accidental rotary movement thereof and being movable along said slots.

6. The combination of a support, an apertured support pivotally mounted on the first said support, a shank mounted for rotary and longitudinal movements in an aperture of said apertured support, a lever movable longitudinally of said shank and operable to eifect rotary adjustments of the latter, means cooperative with said lever for holding said shank in different rotary adjustments, means to hold said shank in different longitudinal adjustments, a spring on the Copies of this patent may be obtained for five cents each, by addressing the first said support and being effective to yieldingly hold said second support in its normal position on its pivot, and means for tensioning said spring.

7 The combination of a support, an apertured support pivotally mounted on the first said support, a shank mounted for rotary and longitudinal movements in an aperture of said apertured support, a lever movable longitudinally of said shank and operable to efl'ect rotary adjustments of the latter, means cooperative with said lever for holding said shank in different rotary adjustments, means to hold said shank in difierent longitudinal adjustments, a spring on the first said support, and means on said shank to tension said spring and to cooperate therewith for yieldingly holding said shank and its apertured support in their normal position with relation to the first said sup port.

In testimony whereof I have hereunto set my hand.

SAMUEL RICHARD ANDERSON. Witnesses:

ERMINA ATHY, GEO. L. ADER'roN.

Commissioner of Patents,

Washington, D. G. 

